Finite Element Simulation for the Surface Flaw in Tube Open-die Cold Extrusion Process

摘要：

Numerical simulated for tube open-die cold extrusion process using finite element software Deform-3D. Analyzed the influence rule of the surface crack defects on the tube under the processing parameters which is half die angle, friction coefficient in open-die cold extrusion process. The simulation result shows that the closer the central of the tube roughcast the bigger the inner and outer of the maximum speed difference. So it can determine that the surface crack defects are prone at the central of the tube roughcast. It would be bring surface crack defects when the half die angle and the friction coefficient increase. So some necessary measures are taken to effectively avoid the surface crack defects appearance. Advisably decrease the half die angle, ensure favorable superficial treatment and lubrication are the effective measures.

关键词： Open-die cold extrusion Surface crack defects Finite element simulation Deform-3D

作者: Pei Weichi Li Yaogang

作者单位: College of Mechanical Engineering Hebei Polytechnic University Tangshan, Hebei 063009, P.R. China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 737-738

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）